#include <stdio.h>
#include <string.h>

int main()
{
	int i = 0;
	char arr[] = "abcdefghijklmnopqrstuvwxyz";
	memset(arr, '_', 23);
	printf("%s\n ", arr);	
	int arr1[] = { 1, 2, 3, 4, 5, 6, 7 }	;
	memset(arr1, 1, 12);//????????????????????????????????????
	for(i = 0; i < 7; i++)	
	{
		printf("%d ", arr1[i]);
	}
	return 0;
}
